Exceeds EPA Limit Arsenic EXCEEDS EPA LIMIT

Arsenic in Gloucester, MA Drinking Water

Arsenic data for Gloucester, Massachusetts · 29,862 residents · 2 ZIP codes

ZipCheckup's reading of Arsenic in Gloucester, Massachusetts: the highest detected level is 14 ppb; the EPA limit is 10 ppb. Arsenic carries a high health-risk designation.

Because Arsenic is associated with health effects at sustained elevated exposures, residents in Gloucester, Massachusetts may find it useful that local water systems have returned detectable concentrations - facts that bear on long-term household water decisions.

14 ppb
Max Level Detected
14 ppb
Average Level
10 ppb
EPA MCL
High
Health Risk
Reverse Osmosis
Best Filter Method

Data: EPA SDWIS, CCR Reports, ECHO Last verified: 2026-07-13

Arsenic in Gloucester Tap Water

Arsenic has been detected in Gloucester, Massachusetts drinking water at a maximum level of 14 ppb — 1.4x the EPA MCL.

This analysis covers 29,862 residents across 2 ZIP codes in Gloucester.

Gloucester's overall water quality grade is C (63/100).

Is Arsenic in Gloucester Water Safe?

Arsenic levels in parts of Gloucester exceed the EPA MCL of 10 ppb. The EPA requires water systems to take corrective action when this limit is exceeded.

If you live in an affected ZIP code, consider installing a reverse osmosis filter certified under NSF 53 / NSF 58 and testing your water independently.

Arsenic Levels by ZIP Code

ZIP Code Arsenic Level EPA Limit Status
01930 14 ppb 10 ppb Exceeds limit
01931 14 ppb 10 ppb Exceeds limit

Average arsenic level across Gloucester: 14 ppb

Health Effects of Arsenic

  • Increased risk of skin, bladder, lung, and kidney cancer
  • Cardiovascular disease and type 2 diabetes
  • Skin changes (darkening, thickening, lesions)
  • Developmental effects in children exposed in utero

Health risk severity: High. Governed by the Arsenic Rule (2006).

How Arsenic Gets Into Drinking Water

  • Natural deposits in rock and soil (especially in western U.S.)
  • Runoff from orchards and glass/electronics production
  • Historical use of arsenic-based pesticides
  • Well water in areas with arsenic-rich geology

What to Do About Arsenic in Gloucester Water

  1. Install a reverse osmosis (RO) system certified under NSF 58
  2. Adsorptive media filters (iron-based) can also reduce arsenic
  3. Have well water tested if on a private supply
  4. Boiling water does NOT remove arsenic — it concentrates it

Look for filters certified under NSF 53 / NSF 58 for arsenic removal.

Related

Home → Contaminants → Arsenic → Massachusetts → Gloucester

How to cite this page

APA ZipCheckup. (2026). Arsenic in Gloucester, MA Drinking Water. https://zipcheckup.com/contaminants/arsenic/gloucester-ma/
BibTeX 
@misc{zipcheckup-contaminants-arsenic-gloucester-ma,
  author = {{ZipCheckup}},
  title  = {{Arsenic in Gloucester, MA Drinking Water}},
  year   = {2026},
  url    = {https://zipcheckup.com/contaminants/arsenic/gloucester-ma/}
}

Data as of July 2026.

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